Electrical switch.



WZZZ'Z666 as I F. SCHNEIDER. ELECTRICAL SWITCH. APPLICATION FILED 13513.20, 191s.

Patented July 21, 1914.

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be stated that the part enrich.

llRAhlKLIN SCHNEIDEE, 61E CLEVELAND, 031G, ASSIGNOR, BY MESNE ASSIGNMENTS, Tl) THE VAN DOE/N ELECTRIC T0033 (JQMPANY, Q15 CLEVELAND, OHIO, A CDRPORA- nnno raroer. swrroir.

Specification of Letters Patent. Patqgnted July 21, 1914,

Application filed February 20, 1913. Serial No. M9545.

To all whom it may concern:

Be it known that I, FRANKLIN Sonnninnn, a citizen of the United States, and a resident of Cleveland, county of Cuyahoga, and State of Ohio,.have invented a new and useful improvement in Electrical Switches, of which the following is a specification, the principle of the invention being herein explained and the best mode in which i have contemplated applying that principle, so as to distinguish it from other inventions.

The subject of the present invention is an electrical switch adapted primarily for use in connection with an electrically operated tool, such as a drill or the like. The features to be desired in a switch intended for the above purposes are simplicity of construction, convenience of disposition relative to the operator, together with rapidity of: operation. The present invention fulills the above requirements and possesses also the advantage of comparative low cost.

To the accomplishment of the foregoing and related ends, said invention, then, con-- sists of the means hereinafter fully (ls-- scribed and particularly pointed out in the claims.

The annexed. drawing and the following description set forth in detail certain mcchanism embodying the invention, such disclosed means constituting, however, but one of the various mechanical forms in which the principle of the invention may be used. In said annexed drawing :-l?igure 1 a centralvertical section through the casing; taken on the line l1, Fig. 2, but showing the operating mechanism in side elevation and Fig. 2 is a section on theline "2---2, Fig. l, but showing the switch mechanism in side elevation for the purpose of clearness.

he general construction of my invention will be readily seen from Fig. 1. I provide a suitable split casing consisting of a base i and a cover or handle portion 2 which may be fastened together by any suitable means. It is of: no importance in the present connection as to how the switch casing willbe at tached to the casing of the tool, but it may 2 of the casing will preferably form one of the handles by which the tool is held; In the base of the casing there is jo-urneled. a pin '4: upon which "is oscillatorily mounted a plurality of spaced spring contacts 5 suit switch, member 5 adapted to bridge m l ig.,.l, s

ably attached to a block 7 ofinsulating material. Suitable contact strips 8 are attached to the switch member and may be of any desired material. The switch member 5 is also of insulating material oi some type.

The circuit is closed when the switch member 5 is in the position shown in Fig. 1. Wires 9 are attached to the contacts 6 and will lead to the operating means for the electrical tool which is not shown' The means. for rapidly operating the switch member comprise a second oscillatory memher 10 mounted upon a suitable axis, consistingof a pin 11 attached to the handle of the casing. The second oscillatory member 10 is mounted to swing in the same plane as the switch member and is hollowed out at its forward end forming a. recess adapted to receive' a plunger 12 which is springpressed by means of a coil spring 13 mounted in the recessin the member. At its forward end this oscillatory member is provided with two cup-shaped recesses 14 in which there may engage two plungers 15 and 16 mounted in alinement with each other in opposite sides of the casing, and at such a point on .the handle that they may be readily operated bythe hand of the operator. The operatioir or the switch will be read- 11y understood from the foregoing descrip tion. rs close the circuit, the upper plun- I nor 16 is pressed downward by the operator, thus moving the operatingv plunger in the oscillatory member across the plate on top of the switch member. So. long as the plunger is on the upper side of the line through the axesof the switch member and the second member '10, its pressure will have no eil'ect toward operating the switch member but as the plunger passes the center the spring in the recess in the oscillatory memher, which has been compressed during the first part oi the movement of the member, will operate to throw the switch into lts closed position with an extremely rapid movement.

The pin upon which theswitch member is osciliator ly mounted is held loosely in lugs 1 18 attached to the base of the casing, theuppe'r portionil of the casing slipping down over either end of the pin and retainingi samdftrr disengagement with the I .105 i the. ugs.

By this .eonstructionit is possible to takefj down the switch readily to he examined cleaned, or to have parts replaced, suchfas no...

the contact strip which must necessarily be removed at intervals. The simplicity of the switch is evident as it contains few parts ot which but five move, Which makes the device compare very favorably with the usual type of rapidly operating or snap oti' switche which are complicated in construction. Rapidity of movement is in no wa sacrificed to simplicity, however, as the action will take place at a given point in the swing of the second oscillatory member and the speed of the switch member will be determined by the strength of the spring 123 which may be of considerable stillness without making the device difficult to operate.

Other modes of applying the principle of myinvention may be employed instead of the one explained, change being made as re gards the mechanism herein disclosed, provided the means stated by an} of the following claims or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as my invention "1. In an electrical switch, the combination of a. casing; an oscillatory switch member site sides of said extension and adapted to actuate said oscillatory member.

2. in an electrical switch, the combination oi an open casing; a plurality of alined lugs therein: a switch member; a pin eonnectin; said member and said lugs. said pin being lflflhtl v received in the latter; and a cover for said easing. adapted when in position to maintain said pin in position and upon removal to permit said pin to he slidably with drawn from said lugs.

Signed by me. this 15th day of February. lfllil.

FR NKLI N SCI l NEIDEIL 

